Please help me to understand how this code works

[captain-yossarian]

Sorry, it is not an issue but rather a question. I want to write simple script to establish communication via radio (tx) with flight controller (betaflight). Could you pls help me to understand how to do it. I understand that I need to call crossfireTelemetryPush but I dont know which argumentsd hsould be sent. Apart from that, could you please provide me a link to betaflight commands name. I have found a lot but because nothing works I dont even know whether I go in a right direction.

I have asked on reddit, stackoverflow and expresslrs github - did not get any answers.

Please provide me with any minimum working example to better understand it. THank you very much in advance